Still in the process of tearing down my buddies motor. After taking the intake off I noticed a bunch of built up carbon/oil on the intake valves. His heads are fairly new maybe a year old pro comp aluminum's. Taking a look at the intake and you can see where oil is being sucked in by what im assuming is the pcv valve. PCV valve seems to working properly. I went ahead and did a cylinder leak down test. Camshaft is out already so all the valves were closed and I just rotated each cylinder to TDC. Used about 80 psi in each cylinder and all were in the teens. 12-16 at the most. All of the loss was from around the rings, but with that little (which I would consider good) loss, I wouldn't assume there is a ton of blow by around the rings? His valve covers have baffles in them. The only reason I dont think the intake gasket itself was leaking is because of the oil in the intake runners where its clearly being sucked in.
Any ideas? I know he can run a catch can, but why the need?
Any ideas? I know he can run a catch can, but why the need?